Light Sources and LightTech offer high-quality standard germicidal lamps in both ozone free and ozone generating solutions. The type of fused quartz used to make the body of the germicidal lamp determines the emission of the wavelength of the UV energy.

"L" or “Low ozone” generating lamps transmit up to 90% of their energy at the 254nm wavelength and typically utilize a doped fused quartz that blocks the emission of 185nm energy.

"VH" or “Very high ozone” generating lamps are produced using clear fused quartz which allows for the transmission of energy at both 185nm and 254nm wavelengths. The 185nm energy reacts with the oxygen in the air to produce ozone. In applications where moderate amounts of ozone may be required, we can splice the two types of quartz together to form a custom "L" to "VH" ratio according to the customer's specific requirements.

UV-Action

LightSources & LightTech's low-pressure, mercury-arc germicidal lamps are specially designed to produce the highest amounts of uv radiation - where 90% of energy is typically generated at 254nm. This radiation is very close to the peak of the germicidal effectiveness curve of 265nm, the most lethal wavelength to microorganisms. (see graph).Our germicidal lamps are used extensively in theair and water purification markets and have been utilized in applications such as food and beverage, medical, HVAC (Heating, Ventilation and Air Conditioning), pharmaceutical and the semiconductor sterilization industries.

Our germicidal lamps are essential components in the drinking water, wastewater and ground water remediation industries as well.

Ozone Action

"VH" (or Very High ozone producing lamps) generate energy at 185nm in addition to the 254nm wavelength.

The UV emission at 185nm produces abundant amounts of ozone in air. Ozone is an extremely active and effective oxidizer, destroying microorganisms as well as acting as a deodorizer.

A primary advantage of the ozone generated by our UV germicidal lamps is that it can be carried through the air into places not easily reachable by direct UV exposure.

Interested to learn more? Check our education section and find out the many advantages of UVC radiation.

Standard Output Quartz Germicidal Lamps

Tube

Diameter

BF - BF

Arc

Length

Power¹

Current

Voltage¹

UV output¹

@ 254nm

Rated¹

Life

mm

mm

mm

W

mA

V

µW/cm²

W

hrs.

Preheat Start Lamps

Low Ozone

GPH212T5L

15

212

132

10

425

25

27

2.7

16,000

GPH287T5L

15

287

207

14

425

34

40

4

16,000

GPH303T5L

15

303

223

15

425

35

43

4.3

16,000

GPH357T5L

15

357

277

17

425

42

57

5.7

16,000

GPH436T5L

15

436

356

21

425

51

72

7.3

16,000

GPH793T5L

15

793

713

38

425

92

125

13.5

16,000

GPH843T5L

15

843

762

41

425

98

150

16

16,000

GPH1148T5L

15

1148

1067

55

425

135

180

22

16,000

GPH1554T5L

15

1554

1474

75

425

179

240

33

16,000

GPH1630T5L

15

1630

1550

79

425

189

252

34.5

16,000

Preheat Start Lamps

Ozone Generating

GPH212T5VH

15

212

132

10

425

25

27

2.7

16,000

GPH287T5VH

15

287

207

14

425

34

40

4

16,000

GPH303T5VH

15

303

223

15

425

35

43

4.3

16,000

GPH357T5VH

15

357

277

17

425

42

57

5.7

16,000

GPH436T5VH

15

436

356

21

425

51

72

7.3

16,000

GPH793T5VH

15

793

713

38

425

92

125

13.5

16,000

GPH843T5VH

15

843

762

41

425

98

150

16

16,000

GPH1148T5VH

15

1148

1067

55

425

135

180

22

16,000

GPH1554T5VH

15

1554

1474

75

425

179

240

33

16,000

GPH1630T5VH

15

1630

1550

79

425

189

252

34.5

16,000

Instant Start Lamps

Low Ozone

G10T5L

15

357

277

17

425

42

57

5.7

16,000

G24T5L

15

692

612

32

425

77

95

11

16,000

G36T5L

15

843

762

41

425

98

150

16

16,000

G48T5L

15

1148

1067

55

425

135

180

22

16,000

G64T5L

15

1554

1474

75

425

179

240

33

16,000

G67T5L

15

1630

1550

79

425

189

252

34.5

16,000

Instant Start Lamps

Ozone Generating

G10T5VH

15

357

277

17

425

42

57

5.7

16,000

G24T5VH

15

692

612

32

425

77

95

11

16,000

G36T5VH

15

843

762

41

425

98

150

16

16,000

G48T5VH

15

1148

1067

55

425

135

180

22

16,000

G64T5VH

15

1554

1474

75

425

179

240

33

16,000

G67T5VH

15

1630

1550

79

425

189

252

34.5

16,000

Note 1: Lamp data is based on measurements performed under laboratory conditions in air at room ambient temperature. Measurements were performed on a high-frequency, current limited electronic ballast and represent average values at 1 meter.